Vent-Axia Multivent Continuous Mechanical Extract Ventilation Unit is designed for the simultaneous ventilation of separate areas in the home or as a multi-point extractor system for a wide range of commercial applications. This product range is designed for the simultaneous ventilation of separate areas in the home or as a multi-point extractor system for a wide range of commercial applications. In the home the system is usually located in the loft or airing cupboard with ducts taken to the bathroom, kitchen and utility room to remove water vapour at source and from WC’s to remove odours. Designed to provide 0.7 of an air change based on the volume of the building, the Multivent system provides adequate ventilation, even in a ‘tight’ dwelling. Pollutant concentrations and humidity can be controlled.